Add Control Method Sleep button and its GPE event handler for
x86.

Signed-off-by: Annie Li <annie.li@oracle.com>
---
 hw/i386/acpi-build.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 80db183b78..75985e1423 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -40,6 +40,7 @@
 #include "hw/acpi/acpi_aml_interface.h"
 #include "hw/input/i8042.h"
 #include "hw/acpi/memory_hotplug.h"
+#include "hw/acpi/control_method_device.h"
 #include "sysemu/tpm.h"
 #include "hw/acpi/tpm.h"
 #include "hw/acpi/vmgenid.h"
@@ -1537,6 +1538,14 @@ build_dsdt(GArray *table_data, BIOSLinker *linker,
     }
     aml_append(dsdt, scope);
 
+    sb_scope = aml_scope("_SB");
+    acpi_dsdt_add_sleep_button(sb_scope);
+    aml_append(dsdt, sb_scope);
+
+    scope =  aml_scope("\\_GPE");
+    acpi_dsdt_add_sleep_gpe_event_handler(scope);
+    aml_append(dsdt, scope);
+
     if (pcmc->legacy_cpu_hotplug) {
         build_legacy_cpu_hotplug_aml(dsdt, machine, pm->cpu_hp_io_base);
     } else {
-- 
2.34.3